TDA7571 Datasheet, PDF (3/21 Pages) STMicroelectronics – STPDACsw - Fully digital high efficiency power audio amplifier

TDA7571
Block and simplified application diagram
1
Block and simplified application diagram
Figure 1. Block and simplified application diagram
R9
R8
C1
C7
L/R BRIDGE 5V dig
Feed Lin
+Vs-Vref1
+Vs +Vs-low
MCLK
MASTER CLOCK
SD DATA
WS WORD SEL
SCK CLOCK
34
46
48
49
50
R10 RFS 35
SGND
PGND
10
29
CD SEL1
33
I2S
OSC
40
28
LEFT
DIGITAL
SIGNAL
PROCESSING
9
12 42
13 Spl1
INTERFACE
14
CHANNEL LEFT 18
HSD+
PROTECTIONS ₁₇
22
CHANNEL LEFT 21
LSD+
PROTECTIONS
23
Spl2
Gpl
Gpls
Gnls
Gnl
Snl2
30
CD SEL2
CLIP
24 Snl1
5V DIG
31
CD
6 +Vs-5
15 -Vs+5
37
THW EXT
8 Spr1
36
R1
THW INT
C2
38
NTC
NTC
56
ST-BY
55
DGND
MUTE
F
C3
39
2.5V
54
-2.5V
THERMAL
PROTECTIONS
REF
RIGHT
DIGITAL
SIGNAL
PROCESSING
INTERFACE
7
CHANNEL RIGHT 4
HSD+
PROTECTIONS ₅
Spr2
Gpr
Gprs
63 Gnrs
CHANNEL RIGHT 64
LSD+
PROTECTIONS
62
Gpr
Snr2
52
SGND C4 DGND
32
41 43 44 45 47
53
57
61 Snr1
25 26,27,58,59 60
P/O D1 D2
t1 t2 SGND Feed Rin
-Vs+Vrefl
-Vs
-Vs+Vrefr
R7
M4
M3
R6
R5
M2
M1
R4
D01AU1271A
C5
5V
R2
R3
+25V
OUTPUT
LOWPASS
FILTER
-25V
+25V
OUTPUT
LOWPASS
FILTER
-25V
OUT
LEFT
OUT
RIGHT
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